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High-heat-value fuel gas producing system and gas producing method thereof

A high calorific value, gas technology, applied in the manufacture of combustible gas, gasification process, biofuel, etc., can solve the problems of low gas production efficiency and difficult biomass slag collection, and achieve high gas production efficiency, increase utilization value, air Sufficient supply of effects

Inactive Publication Date: 2019-03-22
KEDA MAS CLEAN ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a high-calorific-value gas gas production system, which solves the existing problems of difficult collection of biomass slag and low gas production efficiency when biomass and coal are mixed for gas production. The biomass raw material pyrolysis and coal gasification are separated and In the case of gas production, it is carried out at the same time. On the one hand, the pyrolysis gas and coal gas obtained by the two simultaneous gas production are mixed to form high calorific value gas, and the gas production efficiency is high. On the other hand, the separate gas production of the two is beneficial to recovery and retention. Biomass slag that fixes carbon and produces higher economic benefits

Method used

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Embodiment 1

[0044] Such as figure 1 As shown, a high calorific value gas production system includes a coal bunker 1, a coal feeder 2, a fan I 3, a gas reaction furnace 4, a slag discharger 5, a biomass material bin 7, a fan II 8, and a pyrolysis reaction tube 10 , cyclone separator II 11, heat exchanger 13 and dust collector 14.

[0045] Among them, the coal gas reaction furnace 4 of this embodiment is different from the traditional gasification furnace in structure, and it is divided into a lower coal gasification reaction zone and an upper pyrolysis zone, which carry out coal gasification reaction and biomass pyrolysis reaction respectively. The side wall of the coal gasification reaction zone is provided with a coal material inlet and an air inlet. The coal material inlet is above the air inlet. The coal material inlet is connected to the coal bin 1 through the coal feeder 2. The coal in the warehouse 1 is sent to the coal gasification reaction zone in the gas reaction furnace 4 throu...

Embodiment 2

[0056] In Embodiment 1, if the flow velocity of the biomass raw material in the pyrolysis reaction tube 10 is fast, the residence time of the biomass raw material in the pyrolysis zone will be short, and the pyrolysis reaction will not be sufficient. However, the structure of the high calorific value fuel gas system of this embodiment is basically the same as that of the gas system of Example 1. The difference is that the pyrolysis reaction tube 10 is arranged in the pyrolysis zone in the gas reaction furnace 4 with a relatively complicated structure. The residence time and reaction area of ​​the biomass raw material in the pyrolysis zone are greatly increased, the pyrolysis of the biomass raw material is more sufficient, and the gas production efficiency of the device is improved.

[0057] The pyrolysis reaction tubes 10 can be arranged in various forms in the pyrolysis zone, such as spiral coiling, layered folding, serpentine winding, etc. These arrangements can achieve the e...

Embodiment 3

[0060]The high calorific value fuel gas gas production system of the present embodiment has been partially optimized on the basis of the gas production system of Embodiment 2. It is equipped with a cyclone separator 16 between the gas outlet and the heat exchanger 13, and a gas reaction furnace 4 The side wall of the lower part is provided with a material return port, the material return port is connected to the discharge port of the cyclone separator I6 through the return material pipe, and the pyrolysis gas outlet of the cyclone separator II11 passes through the gas outlet of the pipeline and the cyclone separator I6 connect.

[0061] After the coal material reacts in the coal gasification reaction zone in the gas reaction furnace 4, the generated coal gas will be mixed with some fine coal particles. After these coal particles are discharged together with the gas, on the one hand, it will affect the cleanliness of the gas produced. On the one hand, it is also a waste of coal...

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Abstract

The invention discloses a high-heat-value fuel gas producing system and a gas producing method thereof, and belongs to the field of fuel gas production. The gas producing system comprises a biomass reacting furnace with an upper pyrolysis area and a lower coal gasification reaction area, wherein a pyrolysis reaction tube is distributed in the pyrolysis area; the feeding end of the pyrolysis reaction tube is connected with a biomass cabin; pyrolysis gas is discharged from the gas discharging end of the pyrolysis reaction tube through a pipeline, and is mixed with coal gas. By adopting the gas producing system, coal and a biomass raw material are reacted separately, the biomass pyrolysis gas is mixed with the coal gas to obtain higher-heat-value coal gas, biomass residue produced after the reaction can be collected conveniently, so that high economical benefit and a good gas producing effect are achieved. In the gas producing method, the gas producing system is adopted. The biomass raw material and the coal can be used for producing gas separately, so that high gas producing efficiency is achieved. Heat generated in a coal gasification reaction can be taken as a heat source of biomass pyrolysis, so that the overall energy utilization rate is high.

Description

[0001] This application is titled: A Coal and Biomass Mixed Gas Production System and Its Gas Production Method, the application number is: 2018112776346, and the application date is: October 30, 2018. A divisional application of the invention patent application. technical field [0002] The invention belongs to the field of fuel gas production, and more specifically relates to a high calorific value fuel gas gas production system and a gas production method thereof. Background technique [0003] Among the existing gas manufacturing technologies, coal gas and biomass gas are the two main methods. The raw materials used in biomass gas production are wastes generated during agricultural and forestry production and agricultural and sideline product processing. By utilizing these wastes, the pollution to the environment can be reduced and the problem of energy shortage in our country can be alleviated. However, due to the low calorific value of biomass fuel, compared with gas ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/72C10B53/02
CPCC10B53/02C10J3/20C10J3/72C10J2300/0916C10J2300/093C10J2300/0956C10J2300/0959Y02E50/10Y02P20/10
Inventor 汪鎏朱晨军李耀拉任强
Owner KEDA MAS CLEAN ENERGY